Influence of climate change on the productivity of ecosystems of the Belarusian Polesie based on remote sensing data
A. P. GUSEV
F. Skorina Gomel State University, Gomel, Republic of Belarus
Keywords: ecosystems, climate change, trend, Belarusian Polesie
Abstract
The results of the analysis of changes in the productivity of forest, bog and arable ecosystems in the eastern part of the Belarusian Polesye in 2000-2020 are presented. Satellite imagery (MODIS radiometer of the Terra satellite) was used. Ecosystem productivity was assessed according to the normalized difference vegetation index (NDVI). The correlation between changes in climatic indicators and NDVI has been studied. It was found that the studied ecosystems differ in response to climatic changes. Statistically significant positive NDVI trends were found for forest and bog ecosystems. A reliable correlation of this indicator with the average summer temperature and summer precipitation has not been established. Arable ecosystems are characterized by the absence of a statistically significant trend in productivity and a significant negative correlation of NDVI with temperature and a positive correlation with precipitation. The effect of climatic characteristics on the NDVI of arable ecosystems depends on their soil type.
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